Question

He realized early that the best strategy was to harass the British. He reported to Congress, "we should on all occasions avoid a general action, or put anything to the risque, unless compelled by a necessity, into which we ought never to be drawn." Ensuing battles saw him fall back slowly, then strike unexpectedly. Finally in 1781 with the aid of French allies—he forced the surrender of Cornwallis at Yorktown.

Which detail is most relevant to the central idea in this excerpt?

Washington gave reports to Congress in which he explained the reasons for his battle strategies.
Washington was the commander of the Continental army during the Revolutionary War.
Cornwallis was one of the commanders of the British army during the Revolutionary War.
One Washington battle strategy was to have his troops fall back slowly and then strike the British unexpectedly.

Answer 1

One Washington battle strategy was to have his troops fall back slowly and then strike the British unexpectedly.

This detail directly describes the strategy emphasized in the excerpt (harassing the British and avoiding general action) and links to the outcome at Yorktown.